Question

[11/02, 14:03] Born To Teach‍: Science Question

CHAPTER - LIGHT SHADOW AND REFLECTION

Question 1. Object like sun that give out or emit light of their own are called :
a) Opaque.
b) Pinhole camera
c) Reflection
d) luminous

Question 2. The colour of the shadow of any object is always:
a) White
b) Black
c) Green
d) Pink

Question 3. When a beam of light falls on a mirror it change :
a) it's amount
b) it's direction
c) it's momentum
d) it's speed

Question 4: Which is a device to image to sun :
a) Plane mirror
b) A straight pipe
c) Pinhole camera
d) Glass slab

Question 5 . This is a --------- on which the shadow is formed :
a) luminous
b) three dimensions
c) screen
d) line


Question 6: Which of the following is a cold source of light:
a) Firefly
b) The sun
c) Tube light
d) Electric bulb

Question 7: Bouncing back of light from shining surface is called :
a) Reflection
b) Dispersion
c) Bending
d) Refraction

Question 8: What is lateral inversion :
a) Image become inverted
b) Image bends laterally
c) All of these
d) Right of the object appears left of the image

Question 9 . Image formed by a plane mirror is :
a) Erect
b) Shadow
c) upside down
d) Mirror

Question 10. Which is an example of a translucent object :
a) A thin sheet of paper
b) A thin glass slab
c) A thin iron sheet
d) All of these
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Answer 1

Answer:

1.luminous

2.black

5.screen

6.firefly

7.reflection

8.All of these

9.erect